I have posted in other threads about issues I've had with a fast draining battery and before I return it to the Apple Store today I want to try one last thing and am looking for input. I would average about 15-18 hours on my 42mm Sport with generally light use. Brought it to the Genius Bar and they sent it for a battery replacement as they couldn't get the diagnostics to work. Warehouse said diagnostics came back great and they wouldn't replace the battery. Received it back dead, charged to 33%, had it drop to 31% while on charger fixing watchfaces and wore it for 75 minutes with little use other than answering a couple of text messages. It was at 13% when I went to bed. I woke up at 2:30 and took it off the charger to see what would happen. By 5am it was at 87% from 100%. I have since reset the watch again, restarted it twice, and restarted the phone twice. It went from 100% to 89% in about an hour and fifteen minutes and at that point I noticed that usage and standby times were similar. I pulled every app off that did not come with the watch and stuck it back in the box. It dropped 4% in a few minutes to 85% and is now at 84%, but the app lost contact with the watch. The two times are now separated by 11 minutes but it has been well over that since I took the watch off. My question. If I leave this thing in the box all day and have a low battery by the time I arrive at the Apple Store, can its placement in the box somehow be blamed since it was struggling to find a Bluetooth signal in there or anything? I want to properly demonstrate that something is up.